Body mount



F. F. KISHLINE Sept. 4, 1945.

BODY MOUNT Filed Nov. l4, 1940 :s Sheets-Sheet 1 INVENTOR. FLOYD l.K/JHL/A/E Sept. 4, 1945.

F. F. KISHLINE BODY MOUNT Filed Nov. 14, 1940 3 Sheets-Sheet 2IIIIIIIIIIII III II!!! vllll'l'lllllll a I I I I l I l I I u a S 4,1945- 4 F. F. KISHLINE i 2,384,096

BODY MOUNT Filed Nov; 14, 1940 s Sheets-Sheet illllrllllllllllllrl1/ I?'ENTOR. FLO 70 E K s HLf/VE A TI'OPJJEY.

Patented Sept. 4, 1945 UNITED STATES PATENT OFFICE BODY MOUNT Floyd F.Kishline, Kenosha, Wis., assignor to Nash-Kelvinator Corporation,Kenosha, Wis'., a corporation of Maryland 7 Application November 14,1940, Serial No. 365,611 15 Claims. (Cl. 296-35) This invention relatesto means for holding a vehicle body upon the chassis frame of thevehicle and has particular reference to means for mounting an automobilebody upon a frame.

It is an object of this invention to provide mounting means which willpermit the strengthening properties of the body to increase the rigidityof the frame.

It is another object of this invention to provide body mounting meanswhich will transmit less noise to the body from the frame.

It is another object of this invention to provide body mounting meanswhich will prevent the transmission of shocks from the frame to the ody;I

It is another object of this invention to provide flexible body mountingmeans which may be installed in an automobile without overloading anyone of the body mounts.

It is another object of this invention to pro A vide flexible bodymounting means which will prevent misalignment strains from being set upbetween the frame and the body.

It is another object of this invention to provide body mounting meanswhich will compensate for manufacturing errors in the construction ofthe frame and body,

It is another object of this invention to provide a body mount which maybe installed in a plurality of different positions.

Other objects and advantages of this invention will be apparent from aconsideration of the following description and claims and the attacheddrawings, of which there are three sheets, and

in which- 7 Figure 1 represents a plan view of an automobilechassisframe;

Figure 2 represents a plan view of the frame illustrated in Figure 1with the underbody of the automobile in place thereon;

Figure 3 represents a sectional view taken along a plane indicated bythe line 3 3 inFi ure 1, looking in the direction of the arrows, andincluding a portion of the body attached thereto;

Figure 4 represents a sectional View taken along a plane indicated bythe line 44 in Figure 1, looking in the direction of the arrows,- andshowing a portion of the underbody of the automobile mounted thereupon;

Figure 5 represents a sectional view taken along a plane indicated bythe line 5-5 in Figure 1, looking in the direction of the arrows, andshowing a portion of the body of the automobile thereon;

Figure 6 represents a plan. view of the bracket and clamping meansshownin Figure 5;

Figure '7 represents a sectional view taken along a plane indicated bythe line in Figure 1, looking in the direction of the arrows, andincluding a portion of the body mounted thereon;

1 Figure 8 represents a sectional View taken along a plane indicated bythe line 88 in Figure 1, looking in the direction of the arrows, andshowing a portion of the body of the automobile thereon; and I Figure 9represents a sectional view taken alonga plane indicated by the line 99in Figure 1, looking in the direction of the arrows, and showing'aportion of the automobile bodymounted thereon. g I

Automobile manufacturers have for sometime attempted to reduce'theamount of noise and vibration-s within the automobile bod by employingsoine sort of flexible mounting means between the bodyand the chassisframe which supports the body. These flexible mountings have taken theform of rubber or fabric pads between the body and the frame and in somecases mountings have been used in which rubber bushings are compressedand expanded by bolts so that the connection between-the body and theframe is completed through rubber which is expanded tightly into contactwith parts of the body and the frame. This latter type of mounting isknown to the trade as a Harris bushing.

This invention provides a novel type of body mount in which Harris typebushings are mounted in such a Way as to be engageable with the frame orbody in a plurality of positions. Under theoretically perfectmanufacturing conditions, the automobile, body and frame will fittogether exactly as designed; however, it is impractical to hold thevarious dimensions of the frame and body to such close limits and thereconsequently are errors in manufacture which cause the body and frame tobe slightly out of relative alignment both in a horizontal plane and ina vertical plane. Generally, this invention provides means for mountingeach side of the body-upon the frame at two spaced points and thenclamping the intermediate portions and ends of the body to the frame bymeans of Harris bushings which can be clamped to the frame in variousverticalpositions depending upon whether the body is high or lowrelative to the frame.

The drawings illustrate an automobile frame having side members 20 whichare formedinto hollow cross section in theirmiddle portion by the fillerrails 2| and which are joined by a front cross member 22 and rear motorsupport cross member 24, an intermediate cross member 26 and a rearcross member 28. The front end of the body is' arranged to rest overapertures 30 in the side members 20 while the rear end of the body isarranged to rest over the apertures 32 in the side members and the rearcross member 28. Between the front and rear apertures 30 and 32 areprovided a series of body mounting brackets. The first bracket behindthe front aperture 30 or the number 2 bracket is formed at 34 byextending the ends of the rear motor support cross member 24 beyond thesides of the frame. The number 3 bracket is illustrated at 36 in Figures1, 2 and and is secured to the outside of the side members 20 in amanner which will be more particularly described later. The number 4bracket illustrated at 38 is similar to the number 3 bracket and isshown in Figures 1, 2 and 7.

The number 5 bracket indicated at 40 is shown in Figures 1, 2 and 8.

The automobile body is built up upon an underbody structure consistingof a floor pan 42, the edges of which rest upon a side rail 44. Themanner in which the doors and side walls of the body are mounted uponthe underbody structure does not form a part of this invention and istherefore not shown in the drawings.

The side rail 44 of the underbody consists of an outwardly openingchannel section having vertical flanges 46 turned outwardly from the topand bottom thereof. The edges of the floor pan 42 are secured as bywelding along the top edge of the side rail 44. The floor pan is furthersupported by means of a cross brace 48 which has an upwardly openingchannel shaped cross section and is secured as by welding to theundersurface of the floor pan. The ends of the cross brace 48 areflanged outwardly as at 50 (see Figure '7) and are welded to the sidesof the side rail members 44. The side rails 44 are positioned outwardlyfrom the sides of the side members 20 of the frame so as to increase thewidth-of the body. Towardthe front of the automobile the side railmembers 44 are bent inwardly toward the frame as at 52 (see Figure 2)until they are adjacent tothe outside surface of the side members 20where they are arranged to be secured to the frame by meansof thetransverse bolt 54'. The sidewalls of the body are continued forward ofthe point 52 in generally parallel relationship to the frame 20 and thefiller rail members 44 and the inner edge of the body panels. A wheelhouse panel 58 is provided along the forward edge of the body and plates56.

Toward the rear of the body and just behind the intermediate crossmember 26 the side rail member 44 is curved sharply inwardly as at 60 toa point adjacent to the frame 20 where the body is secured to theframe'by means of a transverse bolt 62. A suitable wheel house panelserves to close the channel shaped section of the side rail 44 into abox section to the rear of the number 5 body supporting bracket. Thetransverse bolts 54 and 62 are passed through holes in the body whichare large enough to register with the holes in the frame regardless ofmanufacturing inaccuracies in the body. The functions I of the bolts 54and 62 is to locate transversely the body on the frame. Suitable fabricor rubber washers may be provided around the bolts 54 and 62 between theframe and body.

A reinforcing member 64 is secured to the inside of the side rail 44 atthe forward end thereof and has a horizontal surface 10 which rests overthe aperture 30 in the frame. The horizontal surface l0 defines anaperture within which is pressed the flanged sleeve 12 (see Figure 3).The sleeve I2 projects upwardly through the reinforcing member 64 andthrough the lower end of a brace I4 which forms a part of the body. Thebushing which is positioned within the sleeve I2 consists of a lowerwasher 16 which has the tube 18 attached thereto by bending the end ofthe tube over the inside edge of the washer. The tube #8 serves to spacethe tubular rubber insulator from the bolt 82. A washer 84 is positionedaround the bolt 82 'on top of the insulator 80 and the upper end of thetube I8. The bolt 82 extends downwardly through the side member 20 ofthe frame and is drawn down tight by means of the nut 86. It is thusevident that when the nut 86 is tightened, the rubber insulator 80 willbe compressed between the washers I6 and. 84, thus expanding theinsulator between the sleeve '52 and the tube 18 so that the connectionbetween the body and the frame is from the bolt 82 and tube IB'throughthe rubber insulator 80. The connection functions as an ordinary Harrisbushing to transmit the body loads to'the frame by means of shear loadsin the body insulator. Attention is called to the fact that theinsulator 80 is considerably longer than the sleeve 12 so that eventhough the body and sleeve I2 are high with respect to the frame, theinsulator will pro- J'ect throughthe sleeve and will grip the sleeve inany'position it occupies vertically with respect to the'sleeve whencompressed. The tube 18 engages the washer 84 to limit to apredetermined amount the degree of compression in the insulator 80.

The number 2 body bolt is most clearly illustrated in Figure 4 andconsists of a stud bolt 88 which is passed upwardly through the extendedend 34 of the rear motor support cross member 24 and is threaded into aboss 90 secured on them-- side surface of the filler plate 56, which isin turn secured as by welding inside of the side rail 44 of the body.The bolt 88 is spacedfrom the cross member by means of a fabricwasher'92 which is mounted on top of the cross member 24. The washer 92has a metal sleeve 94 which projects below the washer and centers thewasher with respect to a second fabric washer 96 positioned belowtheaperture in the cross member 24. 'A metal washer 98 is positioned ontop of the fabric washer 92 and is provided with a metal tube I00 whichextends downwardly through the sleeve 94 and abuts against a lower metalwasher I02 carried between the lower fabric washer 93 and the head ofthe bolt 88. By turning the bolt 88 into the threaded boss 90 the fabricwashers 92 and 96 may be compressed to a degree which is predeterminedby the length of the sleeve I00.

The rear motor support cross member 24 is channel shaped in crosssection and has its open face closed by a plate I04 to form a hollow boxsection. The plate I04 is apertured as at I06 so that a wrench may beapplied to the bolt 88 and as at I08 so that the bolt IIO which securesthe cross member to the frame 20 may be tightened.

The number 3 body bolt is most clearly illustrated in Figures 5 and 6which show the bolt I I2 to be passed downwardly through a cup shapeddepression 4 in the floor pan 42 and through the bracket 36. Areinforcing clip H6 is welded to the inside of the side'rail 44 and theunderside of the cup shaped depression II4 to strengthen the bearingsurface of the bolt on the floor pan. 7

The bracket 36 consists of a lower arm II8 secured to the frame 28 bythe rivet I28 and an upper arm I22 which is secured as by welding to theupper edge of the frame 28. The arms II'8 and I22 are bent horizontallyoutward as at I24 and define an aperture within which is received thebushing generally indicated at I26. Eacho'f the arms II 8 and I22 areslotted as at I28 and provided withoppositely bent out portionsISO whichare arranged to receive a bolt I32. The horizontal portions I 24 of thetwo arms ar weld ed together.

The bushing I26 consists of an inner metal tube I34, the upper end ofwhich is secured to a metal washer I36 and an outer sleeve I38 which isprovided with an outturned flange I48 at the upper edge thereof.Positioned between theou'ter sleeve I 38 and the tube I34 are a pairoffianged rubber insulators I42 which are compressed between the uppermetal washer I36 and a lower metal washer I44 by tighteningup the nutI46 on. the lower end of the bolt I I2. An annular metal washer I41 isprovided between the lower end of the sleeve I38 and the flange of thelower insulator I 42. The insulators I42 may be compressedt a degreepredetermined by the length of the inner metal tube I34, the lower endof 'whichabuts against the washer I44 to prevent further compression ofthe rubber. The compression of the insulators tightly clamps the rubberbetween t e inside of the sleeve I38 an the outside of the tube I34. Itwill be noted that the compressin of the insulators I42 just explainedis entirely in dependent of the position of the bushing I25 within thebracket I I8. After the bushing I26 has been compressed to the desireddegree, the horn zontal portions I24 of arms II 8 and I22 maybecontracted around the outer sleeve I38 by tight ening the nut I48 on thebolt I32 (see Figure 6). The slot 528 in the arms I53 and I22 allows theportions I 24 of arms H8 and I 22 to be deformed sufficiently to tightlygrip the outside of the sleeve I38 in whatever position the bushing I 25may be with respect to the horizontal portions I24 of arms H8 and I22. I

The number 4 body bolt is most clearlv iliu trated in Figure 7 and isshown to consist of a bolt I 58 passed downwardly through the fioerra'n42 and the transverse brace 48' through a bushing generally indicated atI26 which is the same as the bushing I 26 just described in connectionwith the number 3 body bolt. The number 4 body bolt is connected to theframe by means of the bracket 38. The bracket 38 consists of an upperarm I52 secured to the top of the frame 28 by rivets I5 and a lower armI56 secured to the lower e ge of the frame 20 as by welding. The arm sszand I56 extend diagonally rutvl a' d f m e fra e and are bent into ahorizontal portion lfi which is apertured to receive the bushing I26.The arms are also slotted as at I68 and provided with oppositely bentout portions I62 arranged to receive a belt 832 for clamping tnebracketto the bushing l26.

The number 5 body bolt is most clearly shown in Figure 8 and consists ofa bolt I 64 pas ed downwardly through a flange I66 forme on the loweredge of a seat supporting panel I 68 which is welded to the uppersurface of the floor pan M. The bolt I64 extends through. a fabricwasher which is centered over an aperture in the bracket 48 by the metalsleeve I 18. A second fabric washer I1I is positioned below the bracketand clamped in place by the washer I12. It will be noted that the boltI64 is shouldered to engage '7 the Washer I12 to limit the degree towhichtli fabric washers may becompressed. The bracket 48 which supports'the washer I69 on the frame 28 is of simil ar constructlon to thebrackets 38 and 38, having an upper arm I13 secured to the frame 28 byrivets I14 and a lower arm I1E'weld'ed to the lower edge of the frame28'. The arms are apertured as at I18 to pass the bolt I64 and sleeveI18 but they are not slotted as it is not necessary for them to bedeformed around the washers;

The rear body bolt is most clearly illustrated in Figure 9 and consistsof a belt I 82 passed downwardly through a reinforcing bracket I 84 andthe frame 28. The bracket I84 has a lower face I86 which is welded tothe floor pan 42, a side face I88 bent at right angles from the lowerface I86 and a forward face I98 welded to a raised portion I92 of thefloor pan 42. A rubber pad I94 is positioned between the bottom of thefloor pan 42 and the upper surface of the frame 20. The paid I94 has themetal plates I86 bonded to each side thereof, the lower of which definesan annular flange I98 which fits within the aperture 32 in the frame tocenter the pad over the aperture. The

' bolt I82 extends completely through the frame 28 and is provided witha nut 288 on the lower end thereof. A second rubber pad 282 is providedbetween the nut 288 and the lower surface of the frame 28. The pad 282is provided with metal surfaces 284 bonded to it in the same manner asis the pad I94. The rubber pads separate the bolt I82 and the body fromthe frame so that there is no metallic connection between the frame andthe body through which noise and vibration may travel.

In assembling the "body on the frame; the number 5 and the number 2 bodybolt brackets form the initial support for the body on the frame. Thebody is so designed that with the body thus resting upon the frame. theposition of the intermediate and end mounting points will be spacedabove their atria sponding brackets on the frame. I his assures that; ifthe unattached portions of the body lower than designed with respect tothe framedue to manufacturing inaccuracies, there will still be room toposition the bushings 12am their sup porting brackets and the bushing88' in the sleeve 12 at the front of the body The bushings I25 may bepositioned loosely in' their brackets, after which the body is placed onthe. frame and the body bolts 82, II2 and I58 are passed through thebushings and drawn down tight to compress the rubber insulators in thebushings. After this is done, the brackets 38 and 38 may be clampedaround the bushings I26 by tightening the bolts I32 in whatever positionthe bushings happen to rest with respect to the brackets. The result isa series of flexible Harris type bushing supports along each side of thebody to support the intermediate and front portion of the body. Thebushings are all compressed to a predetermined degree so that the bodyloads are equally distributed along the frame. The mounting cannot exertany misalignment strains between the frame an body and no singlemounting will be over loaded and compressed; The compression of the.various bushings will be maintained below the point at which they willtransmit excessive noise to the body. The degree of compression of therubber bushings which is determined by the length of the metal tubes 18and I34,is fixed by experiment according to the desired restrainstbetween the body and the frame and according to the de esired'cushioning and sound deadening effectof the bushings.

The rear body bolt is connected through the back portion of the framewhere the side members are not reinforced by the filler rails2 I Theframe is thus relatively flexible at this point and can be deformedsufliciently by tightening the bolts I82 to clamp the frame andbodytogether without causing undue stress in the frame or body. a I

While I have described my'invention in some detail, I intend thisdescription to be an example only and not as a limitation ofmyinvention, t which I make the following claims:

1. In an autm0bi1e, a frame, a body, bolts attached to said body,deformable insulators compressed around said bolts, and means forclamping said insulators with respect to said frame in any one of aplurality of adjusted positions, said clamping means being releasablewithout affecting the compression of said insulators.

2. In an automobile having a frame and a body,

' flanged rubber insulators carried on said body,

ship thereto intermediate of said first mentioned supports, and securingmeans carried by said 'means carried by the other of said members forengaging said compressed rubber insulators in any one of-a plurality ofpositions andindependently of said compressing means. f

5. An automobile body mount comprising a pair of flanged cylindricalmembers positioned one within the other, deformable cushioning meanspositioned between said cylindrical members, means for compressing theends of said deform-'- able members to expand them into contact withsaid cylindrical members, and clamping means engageable with the outerof said cylindrical mem bers in any one of a plurality of positions. g n

6. In an automobile, a frame, a body, bolts passed vertically throughportionsof said body, rubber bushings compressed around said bolts,releasable means for clamping said bushings with respect to said frame,and other bolts extending horizontally through portions of said body andframe.

7. In an automobile, a body member, a frame member, sound deadeningmeans supporting said body member near the front and rear ends thereofon said frame member, deformable insulators carried by one of saidmembers between the ends of said body member, means carried by said lastmentioned member for compressing sai insulators, clamping means carriedby the Other, of said members for engaging said deformable insulators inany one of a plurality of positions, and means associated with saiddeformable insulators members to expand them into contact with thecylindrical portion of said flanged cylindrical members, means forengaging the outer of said cylindrical members in any one of a pluralityof positions, and means cooperable with said compressing means fordetermining the maximum compression of said deformable members.

9. An automobile body mount comprising a pair of flanged cylindricalmembers positioned one within the other, flanged deformable cushioningmeans positioned between said cylindricalmembers, and means forcompressing said deformable means to expand said means into contact withthe cylindrical portion of said flanged cylindrical members in any oneof a plurality of positions of said cylindrical members relative to eachother, said compressing means and one of said cylindrical members beingcooperable for determining the maximum compression of said deformablemembers. a

10. In an automobile, a body member, a frame member, sound deadeningmeans supporting the ends of said body member on said frame member,deformable insulators carried by one of said members between the endsthereof, means for compressing said insulators against the member bywhich they are carried, an clamping means independent of saidcompressing means and carried by the other of said members for engagingsaid deformable insulators in any one of a plurality of positions. r

11. In an automobile, a bodymember, a fram member, inelastic supports ofsound deadening material under predetermined loads supporting said bodymember on said frame member at longitudinally spaced points, deformableinsulators carried by one of said members to the front and rear of oneof said inelastic supportsand means for expanding said deformableinsulators to engage the other of said members in any one of a pluralityof adjusted positions.

12. In an automobile, a frame member, a body member arranged to bepositioned over said frame member, inelastic sound deadening materialfor supporting said body member on said frame memher at one point, adeformable insulato-r carried by one of said members and spaced. fromsaid inelastic support, a sleeve positioned around said deformableinsulator, means connected to said lastmentioned member to expand aportion of saidinsulator to grip said sleeve, means carried by the otherof said members for engaging said sleeve in any one of a plurality ofpositions, a second sleeve carried by one of said members at a pointspaced from said' inelastic support and on the opposite side thereoffrom said deformable insulator, a second deformable insulator positionedWithin said second sleeve and extending beyond the ends thereof, and abolt extend n through said second deformable insulator andthe other ofsaid members, said boltbeing arranged to expand said second deformableinsulator to grip the inside of the second of said sleeves. 13. In anautomobile, a frame member, a body member, deformable cushioningmembers, means for attaching said cushioning members to one of saidfirst mentioned members, a retainer for said cushioning members, saidattaching means being operable to deform said cushioning members to apredetermined amount to grip said retainer, and means for attaching saidretainer to the other of said first mentioned members in any one of aplurality of adjusted positions said retainer may occupy relative tosaid member after being deformed whereby said body memberis supported onsaid frame member by sheer loads in said deformable members.

14. In an automobile, a frame, a body, a bolt passed through said body,an inner grommet clamped endwise around said bolt and having a rubberbushing telescoping the inner grommet and compressed by said bolt andgrommet against said body, an outer grommet surrounding said bushing,and a frame-supported eye clamped upon the outside diameter of saidouter grommet, said bushing engaging said grommets tightly in a radialdirection to prevent relative movement between the engaging surfaces ofsaid grommets and bushing, and said inner grommet having a loose fit atits inside diameter upon said bolt.

'15. In an automobile, a frame, a body, sound deadening material under apredetermined compression supporting said body on said frame at pointsspaced longitudinally thereof, deformable insulators carried by saidbody at diflerent points spaced longitudinally of said body, bracketssurrounding said insulators, securing means engageable wtih saidbrackets in any one of a plurality of positions, and means expandingsaid insulators into engagement with sai brackets to support said bodythereof through shear in the material of said insulators.

FLOYD F. KISHLINE.

